I haven't been thrilled with using my laptop. The screen is nice and big, but then the laptop is tied up.
I thought for a few minutes about using our old portable DVD player. It's an old Panasonic with a 5" screen, though. Not optimal.
Costco has a few digital photo frames at good prices. The Philips 9FF2M4 seems to be the best option. The Pandigital frame at Costco ($60 less) has been getting trashed in reviews.
I'm not sure, though. Battery life isn't thrilling...
...and I could buy a bunch of 4x6 print binder inserts and print a lot of pictures for $200 and tax.